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* [Bug libstdc++/57704] New: std::char_traits<char>::lt is not standards-compliant
@ 2013-06-24 22:20 tudorb at fb dot com
2013-06-24 22:57 ` [Bug libstdc++/57704] " paolo.carlini at oracle dot com
2013-06-25 8:40 ` paolo.carlini at oracle dot com
0 siblings, 2 replies; 3+ messages in thread
From: tudorb at fb dot com @ 2013-06-24 22:20 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57704
Bug ID: 57704
Summary: std::char_traits<char>::lt is not standards-compliant
Product: gcc
Version: 4.7.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: tudorb at fb dot com
Created attachment 30356
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30356&action=edit
simple example to illustrate the bug
The C++11 standard says in 21.2.3.1 (struct char_traits<char>):
"The two-argument members eq and lt shall be defined identically to the
built-in operators == and < for type unsigned char."
However, this is not the case if char is signed (tested using gcc 4.1.2, 4.6.2,
and 4.7.1 on x86_64, but the trunk version of char_traits.h is the same);
char_traits<char>::lt compares the two values as char, not as unsigned char.
The attached program should print 1 twice when this bug is fixed.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug libstdc++/57704] std::char_traits<char>::lt is not standards-compliant
2013-06-24 22:20 [Bug libstdc++/57704] New: std::char_traits<char>::lt is not standards-compliant tudorb at fb dot com
@ 2013-06-24 22:57 ` paolo.carlini at oracle dot com
2013-06-25 8:40 ` paolo.carlini at oracle dot com
1 sibling, 0 replies; 3+ messages in thread
From: paolo.carlini at oracle dot com @ 2013-06-24 22:57 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57704
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |paolo.carlini at oracle dot com
Target Milestone|--- |4.9.0
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug libstdc++/57704] std::char_traits<char>::lt is not standards-compliant
2013-06-24 22:20 [Bug libstdc++/57704] New: std::char_traits<char>::lt is not standards-compliant tudorb at fb dot com
2013-06-24 22:57 ` [Bug libstdc++/57704] " paolo.carlini at oracle dot com
@ 2013-06-25 8:40 ` paolo.carlini at oracle dot com
1 sibling, 0 replies; 3+ messages in thread
From: paolo.carlini at oracle dot com @ 2013-06-25 8:40 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57704
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Done.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2013-06-24 22:20 [Bug libstdc++/57704] New: std::char_traits<char>::lt is not standards-compliant tudorb at fb dot com
2013-06-24 22:57 ` [Bug libstdc++/57704] " paolo.carlini at oracle dot com
2013-06-25 8:40 ` paolo.carlini at oracle dot com
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